Dear Sir,
BMI Problem. Need Advice.

I am 19 years old, 173 cm tall and I have a muscular body, I weigh in about 75 Kg . I started bodybuilding at 16 and I play soccer and cricket regularly. I go for swimming, and bicycling more than once a week. The Doctor says I am overweight, and I am confused because this was a medical check up for a job in the forces. What should I do? Should I reduce muscle or try to put up an argument to persuade him I'm not overweight and the BMI chart is wrong.